Home / 7,128,015.20-10,692,432.40-2,080,104.80

Finding the Fourth Proportional to 7,128,015.20, 10,692,432.40 and 2,080,104.80

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Solution

The fourth proportional to 7,128,015.20, 10,692,432.40 and 2,080,104.80 is: 3,120,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,015.20 : 10,692,432.40 = 2,080,104.80 : x
  2. Step 2: Convert to fraction form
    7,128,015.20/10,692,432.40 = 2,080,104.80/x
  3. Step 3: Cross multiply
    7,128,015.20x = 10,692,432.40 × 2,080,104.80
  4. Step 4: Simplify right side
    7,128,015.20x = 22,241,379,958,915.52
  5. Step 5: Solve for x
    x = 22,241,379,958,915.52/7,128,015.20
  6. Step 6: Final answer
    x = 3,120,276.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.